JP2002330877A - Heat insulating vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating vessel preventing slack of a shoulder member and a shoulder ring, preventing a vessel body from being fallen even if the shoulder member is slacked, and capable of reducing its manufacturing cost. SOLUTION: This heat insulating vessel is provided with a vessel body 2 of a heat insulating structure, a shoulder member 8 detachably attached to the vessel body, a shoulder ring 9 connecting the vessel body to the shoulder member, and a cover member 3 opening/closing an opening part of the vessel body. This vessel is so formed that a step part 2d is provided in an outer surface part of an outer cylinder of the vessel body, the shoulder member is fitted thereto from the lower part, and the shoulder ring is fitted thereto from the upper part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated container for carrying rice, drinks and the like.

[0002]

2. Description of the Related Art FIG. 6 shows a bottle of a conventional heat insulating container. The structure of the bottle a is mainly for carrying a warm drink. As shown in the figure, the bottle a is provided in a vacuum-insulated double-walled container body b and an upper end opening of the container body b. An inner lid c having an on-off valve, and an outer lid d which completely covers the inner lid c and is mounted on its outer periphery.
And carries a hot drink in the container body b. Thus, insulated bottle a
Is characterized in that it is portable. Therefore, on the outer periphery of the container body b, together with a shoulder member e for hanging a hanging string, a shoulder ring f for attaching and fixing the shoulder member e. Is attached.

The shoulder member e has a container body b at its upper end.
The shoulder ring f is screwed to a screw formed on the outer periphery of the container body b on the inner periphery thereof, whereas the shoulder ring f is a hollow cylindrical member having a flange portion engageable with the step formed on the outer periphery of the container body b. It is a hollow cylindrical member having a possible screw. At the time of attachment, first, a shoulder member e is fitted from above the container body b, and a flange formed at the upper end thereof is formed on the container body b. Then, the shoulder ring f is engaged with the shoulder ring f from above the container body b to the screw formed on the outer periphery of the container body b while the shoulder ring f is engaged with the screw formed on the outer periphery of the container body b. And a shoulder member e is attached and fixed with a shoulder ring f.

As described above, the conventional shoulder member e is provided with a shoulder ring f
Since the container body b is detachable by removing the container body, the container body b can be washed in a round manner.

However, in the conventional heat-insulating bottle a, the shoulder member e is attached to the container body b from above and tightened from above by the container body b.
In this case, the screw fitting is further loosened due to the vibration in carrying, and the screw fitting is further loosened. If the fitting is released, the container body b falls off, and there is a problem that the container body becomes dirty or damaged.

Further, in the conventional heat-insulating bottle a, the shoulder member e is attached by fitting a screw provided on the inner periphery of the shoulder ring f to a screw provided on the outer periphery of the container body b. The need to provide a screw on the main body b complicates the shape of the press mold for molding the container main body b, which has the problem of increasing the cost.

Further, in the conventional heat-insulating bottle a, a packing as a detent means is attached between the shoulder member e and the shoulder ring f. However, the packing is interposed between the shoulder member e and the shoulder ring f between the resins. Therefore, there is also a problem that the packing slips and the original detent effect cannot be sufficiently achieved, and the shoulder member is loosened.

[0008]

SUMMARY OF THE INVENTION The present invention prevents the above problems, namely, the loosening of the shoulder member and the shoulder ring, and prevents the container body from falling off even if the shoulder member is loosened. It is an object of the present invention to provide a heat insulating container whose manufacturing cost is reduced.

[0009]

To achieve the above object, the present invention employs the following constitution.

According to the first and second aspects of the present invention, a container body having a heat insulating structure, a shoulder member detachable from the container body, a shoulder ring connecting the container body and the shoulder member, and the container body A lid member for opening and closing the opening of the container, a step portion is provided on the outer surface of the outer cylinder of the container body, the shoulder member is attached from below, the shoulder ring is attached from above, and the step portion is further provided. Is formed so as to be larger than the lower diameter thereof, and the lower end of the shoulder member is hooked on the step to be attached. With such a configuration, the shoulder member can be easily attached and detached, and after the shoulder member is attached, even if the screw engagement between the shoulder member and the main body container is released, the main body container falls down below the shoulder member. There is no security.

According to the third aspect of the present invention, in addition to the first and second aspects, the shoulder member and the shoulder ring are arranged such that the shoulder member is arranged outward and the shoulder ring is arranged inside. A configuration in which the contact portion is screw-fitted. With such a configuration, the shoulder member and the shoulder ring can be simultaneously and integrally connected, and after the two are connected, the two are firmly connected to the container body.

According to a fourth aspect of the present invention, in addition to the first to third aspects, a detent means is provided between the container body and the shoulder member and / or the shoulder ring. According to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect, the detent means provided between the container main body and the shoulder member is provided with a step portion of the container main body and the shoulder member hooked and attached to the step portion. The structure is a packing provided between the lower end of the packing. According to the sixth aspect of the invention, in addition to the configuration of the fourth aspect, the detent means provided between the container body and the shoulder member includes a step portion of the container body and the shoulder member which is hooked and attached to the step portion. A projection provided at any point between the lower end of the projection and the projection. With such a configuration, when the shoulder ring is screwed onto the shoulder member, the shoulder member is prevented from rotating around the co-rotating member or from being loosened due to vibration or the like after the two members are joined.

According to a seventh aspect of the invention, in addition to the configuration of the first to sixth aspects, the upper end of the shoulder ring is located above the upper end of the container body, and a rib is provided at a portion facing the content member. According to such a configuration, for example, in the case of a lunch jar, the vegetable case is arranged near the shoulder ring, but the vegetable case does not rattle inside when being carried after the lid is closed.

According to an eighth aspect of the present invention, in addition to the first to seventh aspects, a gap is provided between the lid member and the shoulder member. With such a configuration, when the lid member is closed, the lid member hits the shoulder member and the shoulder member is prevented from rotating together.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 shows a heat insulating container according to a first embodiment of the present invention. Although the present invention is directed to a lunch jar and a heat insulating container such as a bottle, the following description will be directed to a lunch jar.

A lunch jar 1 as an insulated container comprises a container body 2 made of a vacuum-insulated double-walled structure and a container body 2
The outer shell is constituted by a lid member 3 provided at the upper end opening of the container, and a soup 4 for putting juice, a rice cooker 5 for putting rice and the like, and a side dish are put in the container body 2 from below. For storing vegetables is stored.

A container body 2 made of a vacuum-insulated double-wall structure
To be described, the container body 2 has a hollow cylindrical shape whose upper part is open, and its outer peripheral part constitutes a vacuum heat insulating member,
Inner cylindrical body 2 made of stainless steel metal plate
0, the outer cylindrical body 21, and both members 20, 21
Are welded together to form an internal space 22 as shown in the figure, and the internal space 22 is evacuated to form a vacuum double-walled structure that is a vacuum closed-section structure. .

More specifically, first, a single stainless steel metal plate is drawn to form a slightly smaller cylindrical body having an opening at an upper portion.
And In addition, roundness is formed in the whole bottom part of this inner cylindrical body 20, and the storage of the juice container 4 is stabilized in combination with the bottom shape of the juice container 4 described later. Next, a single stainless steel metal plate is also drawn to form a slightly larger cylindrical body having an opening at the upper side. A hole 21a for evacuation is formed in the bottom of the outer cylindrical body 21,
After forming a closed section structure, the closed internal space 2
A getter 21b for adsorbing gas generated in the inside 2 is attached to the inner surface thereof.

Then, the smaller inner cylindrical body 20 is inserted into the outer cylindrical body 21, and the open ends of the both 20, 21 are welded and joined in such a manner that an internal space 22 is formed between the two. Then, the stainless steel structure is carried into a vacuum chamber, the interior space 22 is evacuated from the hole 21a provided in the outer cylindrical body 21, and the hole 21a is formed by a sealing material (not shown) also heated and melted in the vacuum chamber. Sealing is performed to form a closed-section structure in which the internal space 22 is evacuated. Such a vacuum double-walled structure has a much higher heat-insulating effect than conventional heat-insulating materials such as glass fiber and styrofoam, and greatly improves heat-insulating performance as compared with conventional ones. In addition, since the outer peripheral portion of the outer cylindrical body 21 directly forms the outer peripheral surface of the lunch jar 1, the surface can be used as it is with the stainless steel background, and it is popular with the outer peripheral surface. You can also add character designs.

The container body 2 has an upper wall portion 2a near an open end welded joint between the inner cylindrical body 20 and the outer cylindrical body 21.
A bottom wall 2c having a hole 21a for evacuation and a getter 21b for adsorbing gas, and an upper wall 2a.
And a body portion 2b between the bottom wall portion 2c and the bottom wall portion 2c has a substantially flat surface, and the body portion 2b has a small tapered cylindrical surface extending upward. 2a is formed as a small tapered cylindrical surface having substantially the same diameter or a similar upper portion as the body portion 2b. Furthermore, the upper wall 2
The diameter of a is larger than the diameter of the body 2b.
A step 2d for stopping the shoulder member 8 described later is formed between the points b. Further, in this embodiment, an appropriate number of projections 2e are provided at irregular intervals on the stepped portion 2d, and a recessed portion 8d formed on a shoulder member described later is formed on the projection 2e. The positioning of the shoulder member is performed by fitting, and the co-rotation and loosening of the shoulder member are prevented.

Next, each container housed in the container body 2 will be described.
And a lid 41 also made of resin. Juice body 40,
A container having a substantially W-shaped cross-section having a rounded bottom portion and a concave portion 42 at the center of the bottom portion. The container has a shape along the bottom shape of the inner cylindrical body 20 of the container body 2. This enhances stability when the container 4 is stored in the bottom of the container body 2. Further, a main body screw 43 to which the lid 41 can be screwed is provided on the upper outer periphery of the side wall portion.
In order to stably store the juice container 4 at the bottom of the container body 2, the radius of curvature of the bottom of the inner cylindrical body 20 of the container body 2 is calculated from the radius of curvature of the bottom of the juice container 4. I'm making it big.

The lid 41 has a substantially U-shaped cross section including a substantially horizontal upper surface portion 41a and a vertical side surface portion 41b.
A rubber valve 44 is arranged at a substantially central portion of the upper surface portion 41a. The warm juice put in the juice container body 40 cools, and when the internal pressure decreases, the rubber valve 44 opens inward, and from the outside. The introduction of air prevents the inside from being in a vacuum state and prevents the lid 41 from being opened. In addition, a ring-shaped depression 45 is provided in the upper surface portion 41a, and a knob 46 having a circular shape in a plan view is formed inside the depression 45, and the lid 41 is opened and closed with the knob 46. Further, a lid screw 47 is formed on the inner surface of the side surface portion 41b. So that the juice you put inside will not spill.

Reference numeral 5 denotes a rice cooker body 50 made of resin.
And a rice bowl into which rice or the like consisting of the inner lid 51 can be put,
It is stored and arranged at the upper part of the juicer 4. The rice cooker main body 50 is a cylindrical container having a flat bottom surface, and is stably mounted on the flat upper surface portion 41a of the juicer 4. On the inner surface of the upper end, three or four engagement projections 50a for performing helicoid engagement with the inner lid 51 are provided at equal intervals.

An inner lid 51 as a lid of the rice cooker body 50
Are a resin inner lid body 52, a resin upper plate 53 fitted on the upper surface of the inner lid body 52,
The heat insulating material 58 is interposed between the two members 53. That is, the inner lid main body 52 is formed in a cylindrical shape, a disc-shaped heat insulating material 58 having a predetermined thickness is disposed inside the inner lid main body 52, and the upper plate 53 is fitted on the upper portion thereof. Thereafter, the inner lid 51 is formed by integrally connecting the upper ends of the inner lid main body 52 and the upper plate 53 by heat welding or the like.

On the outer periphery near the lower end of the inner lid main body 52, 3 or 4 provided on the inner surface of the upper end of the rice cooker main body 50 are provided.
The same number of engaging grooves 54 for performing helicoidal engagement with the engaging protrusions 50a are formed at equal intervals, and after the rice or the like is put in the rice cooker main body 50, the engaging protrusions 50a are formed. The two grooves 50 and 51 are fixed by engaging the engagement grooves 54.

A ring-shaped depression 56 is provided on the upper surface of the upper plate 53 constituting the inner lid 51, and a knob 57 having a circular shape in a plan view is formed inside the depression 56.
To attach or detach the inner lid 51, use the knob 57
To be done.

Reference numeral 6 denotes a vegetable container for putting side dishes, which is arranged at the top. The vegetable container 6 is composed of a vegetable container body 60 made of resin and a lid 61 also made of resin. The vegetable container body 60 is a container having a U-shaped cross section with a flat bottom surface. It is stably mounted. A bulged portion 62 is formed over the entire circumference at the upper end of the opening, and a groove 63 is also formed over the entire circumference on the inner peripheral surface of the lid 61. By pressing and fitting, the lid 61 is hermetically fixed to the vegetable container main body 60 so that the contents do not spill.

Then, as shown in the figure, the soup 4, the rice cooker 5, and the vegetable container 6 are stored and arranged in order from the bottom in the container body 2.
The opening of the container body 2 is covered with the lid member 3 from above. The lid member 3 is made of resin and has a cup shape, and can be removed and used as a cup.
On the inner peripheral surface near the opening, a cover screw 3a that can be screwed to a shoulder member outer screw 8c provided on the upper outer peripheral surface of the shoulder member 8 described later is formed.

Reference numeral 8 is a shoulder member which is one of the characteristic members of the present invention. The shoulder member 8 has a ring shape made of resin, and has a flange portion 8 projecting outward at the center of its outer surface.
f, a shoulder member outer screw 8c screwed to a cover screw 3a provided on an inner peripheral surface near an opening of the cover member 3 is formed on an upper outer periphery thereof, and the shoulder member outer screw 8c is formed. A shoulder member inner screw 8b that can be screwed to a screw formed on a shoulder ring described later is formed on an upper inner peripheral surface corresponding to the inside of the shoulder ring.

At the lower end of the shoulder member 8, there is formed a throttle 8a as an engagement means with the step 2d of the container body 2 over the entire circumference thereof, and the inner surface of the throttle 8a is formed. The same number of recessed portions 8d are formed at positions that can be fitted to an appropriate number of protrusions 2e provided at irregular intervals on the stepped portion 2d of the container main body 2. 2
The shoulder member 8 is positioned by being fitted to the projection 2e of d, and the co-rotation and loosening of the shoulder member 8 are further prevented. That is, the recessed portion 8d and the projection 2e constitute a rotation preventing means which is one of the features of the present invention. The mounting position of the projection 2e and the recessed portion 8d may be reversed, and the restricting portion 8a as an engagement means may be used.
The angle may vary from a sharply bent one to a smooth tapered one, and it is not necessary to particularly cover the entire circumference of the container body, and one or more locking means such as locking claws are provided at appropriate places. In other words, any shape may be used as long as the shoulder member 8 is shaped so as to be hooked on the step 2d of the container body 2 and not to go further upward.

When the shoulder member 8 is attached, the shoulder member 8 is inserted from below the container body 2 and the concave fitting portion 8d formed on the inner surface of the narrowed portion 8a is fitted to the projection 2 of the step portion 2d.
e to position the shoulder member. Next, a shoulder ring screw (described later) is screwed into the shoulder member inner screw 8b formed on the inner surface to couple the two together.
The shoulder member 8 can be securely fixed to the container main body 2 by screwing the shoulder ring, and furthermore, by fitting the concave fitting portion 8d and the projection 2e. Looseness of the shoulder member 8 can also be prevented.

Numeral 9 denotes a shoulder ring located inside the shoulder member 8, which has a cylindrical shape made of resin, and has a shoulder ring screw 9a which can be screwed with the shoulder member inner screw 8b on its lower outer peripheral surface. And a flange 9b having a groove 9c on the lower surface is formed on the inner peripheral surface thereof, and a cylindrical rib 9d is further formed thereon. In the groove 9c, a ring-shaped packing 10a as a detent means is arranged, and when the shoulder ring 9 is attached to the shoulder member 8, the packing 10a is located at the upper end of the upper opening of the container body 2. The shoulder ring 9 is held in a contact state, and the shoulder ring 9 and the container main body 2 are firmly connected to each other, and the shoulder ring 9 is prevented from being loosened due to vibration or the like. Further, the height of the rib 9d is formed higher than the bottom surface of the vegetable container 6 which is a content member disposed at the uppermost portion of the container body 2, and a guide for storing the vegetable container 6 and a heat insulating container are provided. Prevents rattling when carrying.

The ribs 9d need not be particularly cylindrical, but may have a shape in which, for example, several ribs are erected. Also, the height of the rib 9d may be any height as long as the vegetable case 6 does not rattle and does not come into contact when the vegetable case 6 is taken out.

The attachment of the shoulder ring 9 and the shoulder member 8 and the like will be described. First, the shoulder member 8 is inserted from below the container body 2 and the concave fitting portion 8d formed on the inner surface of the narrowed portion 8a is formed as a projection of the step portion 2d. The shoulder member is fitted to the portion 2e to position the shoulder member. Next, the shoulder ring 9 is inserted from above the container body 2, and the shoulder ring screw 9 a of the shoulder ring 9 is screwed into the shoulder member inner screw 8 of the shoulder member 8.
b, and screw them together. In this case, the shoulder member 8
Is fitted into the projection 2e of the step 2d,
Since the shoulder member 8 does not rotate with the shoulder ring 9,
The connection between the two is ensured. After the two members are completely connected, the shoulder member 8 receives the force of being pushed upward, and the concave fitting portion 8d of the shoulder member 8 is fitted so as to be pressed against the projection 2e of the step portion 2d, and the shoulder ring 8 is pressed. 9 receives the force of being pushed downward, the packing 10a is strongly pressed against the upper end of the upper opening of the container body 2, and as a result, the coupling between the shoulder ring 9 and the shoulder member 8 is strengthened, and even if the coupling is subjected to vibration after the coupling, The connection between the two is not loosened.

After joining the shoulder ring 9 and the shoulder member 8, the soup 4, the rice cooker 5 and the vegetable container 6 are put in the container body 2,
Will be covered. The cover member 3 is formed by screwing a cover screw 3a formed on the inner surface of the cover member 3 into the shoulder member outer screw 8c. The screwing is performed until the bottom surface of the lid member 3 contacts the upper surface of the flange 8f of the shoulder member 8. After the contact, even if the lid member 3 is turned, the concave fitting portion 8 of the shoulder member 8 is formed.
Since d is fitted to the projection 2e of the step 2d, the shoulder member 8
Do not rotate together, and the closing of the lid member 3 is completed at the contact position of the shoulder member 8.

It should be noted that the loosening torque for releasing the connection between the two members is smaller than that of the shoulder ring 9 and the shoulder member 8.
And the lid member 3 are made smaller, and when the lid is closed, the inner surface of the top plate of the lid member 3 does not come into contact with the upper surface of the vegetable container 6, but it is strongly pressed. If the contact state is not so weak, the movement of the container such as the vegetable container 6 can be prevented, and if the contact state does not significantly deform the container such as the vegetable container 6, it may be sufficient.

(Second Embodiment) In the first embodiment shown in FIG. 1, a concave fitting portion 8d of a shoulder member 8 is fitted to a projection 2e of a step portion 2d, and a shoulder ring 9 is formed. Is strongly pressed against the upper end of the upper opening of the container body 2, and the shoulder member 8 does not rotate and does not loosen as described above. In addition, the cost is increased, for example, by providing a flange 9b for attaching the packing 10a to the shoulder ring 9. In this embodiment, the projection 2e and the flange 9b are omitted, and a packing 10b as a detent means is provided between the squeezed portion 8a and the step 2d of the shoulder 8 by a simple structure. 8 is prevented from rotating and loosening.

In each of the embodiments described below, a part of the lid member, the shoulder member, or the shoulder ring is deformed. A description of each device and the like housed and arranged in the container body will be omitted.

FIG. 2 shows a second embodiment. That is,
Vessel body 2 and lid member 3 composed of vacuum insulated double wall structure
Is the same as in the first embodiment.

The shoulder member 8 will be described again. The shoulder member 8 has a ring shape made of a resin, and has a flange 8f that protrudes outward at the center of its outer surface, and an outer peripheral portion at the upper part thereof. On the upper side, a shoulder member outer screw 8 screwed to a cover screw 3a provided on the inner peripheral surface near the opening of the cover member 3
c is formed, and a shoulder member inner screw 8b that can be screwed to a screw formed in a shoulder ring described later is formed on an upper inner peripheral surface inside the shoulder member outer screw 8c.

At the lower end of the shoulder member 8, a throttle portion 8a is formed as an engagement means with the step 2d of the container body 2 over the entire circumference. A concave fitting portion 8d is formed on the inner surface of the throttle portion 8a, and a ring-shaped packing 10b for preventing rotation is provided in the concave fitting portion 8d. The recess 8d may be provided on the step 2d of the container body 2 and the packing 10b may be provided thereon. The throttle 8a as the engagement means may be formed from a sharply bent one to a smooth one. The angle may be various up to the tapered shape, and it is not particularly necessary to cover the entire circumference of the container body, but may be a locking means such as one or more locking claws at an appropriate place. The member 8 is the container body 2
Any shape may be used as long as the shape is not caught on the stepped portion 2d and goes further upward.

When the shoulder member 8 is mounted, the shoulder member 8 is inserted from below the container main body 2 and the packing 10b arranged in the concave fitting portion 8d on the inner surface of the narrowed portion 8a is attached to the stepped portion of the container main body 2. Contact 2d. Next, a shoulder ring screw (described later) is screwed into the shoulder member inner screw 8b formed on the inner surface to connect the two.
Since the frictional resistance between the b and the step 2d wall surface of the container body 2 becomes large, the co-rotation of the shoulder member 8 is prevented, and the shoulder member 8 is securely screwed to the container body 2 by screwing the shoulder ring. , And loosening of the shoulder member 8 can be prevented.

Reference numeral 9 denotes a shoulder ring located inside the shoulder member 8, which has a cylindrical shape made of resin, and has a shoulder ring screw 9a which can be screwed with the shoulder member inner screw 8b on its lower outer peripheral surface. Is provided, and a cylindrical rib 9d is formed above. The height of the rib 9d is formed higher than the bottom surface of the vegetable case 6, which is a content member disposed at the uppermost portion of the container body 2, and serves as a guide for storing the vegetable case 6, as well as carrying the heat-insulating container. Prevents rattling of the vegetable case 6 at the time. The rib 9d does not need to be particularly cylindrical, and may have a shape in which, for example, several ribs are erected.

The attachment of the shoulder ring 9 and the shoulder member 8 and the like will be described. First, the shoulder member 8 is inserted from below the container main body 2, and the packing 10b arranged in the concave fitting portion 8d on the inner surface of the narrowed portion 8a is attached to the container main body. 2 is brought into contact with the step 2d. Next, the shoulder ring 9 is inserted from above the container body 2, and the shoulder ring screw 9 a of the shoulder ring 9 is screwed on the shoulder member inner screw 8 b of the shoulder member 8.
And screw them together. In this case, the packing 10b disposed in the concave fitting portion 8d of the shoulder member 8 strongly contacts the step 2d of the container body 2, and the shoulder member 8 is
Since they do not rotate together, the connection between the two is reliably performed. Furthermore, even if vibration is applied after the connection, the connection between the two is not loosened.

After joining the shoulder ring 9 and the shoulder member 8, the soup 4, the rice cooker 5 and the vegetable container 6 are put in the container body 2,
Will be covered. The cover member 3 is formed by screwing a cover screw 3a formed on the inner surface of the cover member 3 into the shoulder member outer screw 8c. The screwing is performed until the lower end surface of the lid member 3 contacts the upper surface of the flange portion 8f of the shoulder member 8. After the contact, even if the lid member 3 is turned, the packing 10b arranged in the concave fitting portion 8d of the shoulder member 8 is moved to the stepped portion 2d of the container body 2.
The shoulder member 8 does not rotate together because of strong contact with the cover member 3, and the lid member 3 is completely closed at the contact position of the shoulder member 8.

It should be noted that the loosening torque for releasing the connection between the two is greater than that of the shoulder ring 9 and the shoulder member 8 compared with the shoulder ring 8.
And the lid member 3 are made smaller, and when the lid is closed, the inner surface of the top plate of the lid member 3 does not come into contact with the upper surface of the vegetable container 6, but it is strongly pressed. If the contact state is not so weak, the movement of the container such as the vegetable container 6 can be prevented, and if the contact state does not significantly deform the container such as the vegetable container 6, it may be sufficient.

(Third Embodiment) FIG. 3 shows that a rib is provided on the inner surface of the top plate of the lid member, and this rib is brought into contact with the upper surface of the lid of the vegetable case. An example is shown in which a gap is provided between the shoulder members to prevent co-rotation of the shoulder members. The second embodiment is the same as the first embodiment except that a rib serving as a detent means is provided on the inner surface of the top plate of the lid member. The description will be omitted as the reference is made to the form described in the above, and only the relevant portions will be described.

That is, a cover screw 3a that can be screwed to the shoulder member outer screw 8c is formed on the inner peripheral surface near the opening of the cover member 3, and the inner surface of the top plate forming the horizontal portion is
A cylindrical rib 3b is hung. This rib 3b
Before the lower end surface of the lid member 3 and the upper surface of the flange 8f of the shoulder member 8 come into contact with each other when the lid member 3 is closed, the tip of the lid member 3 may be in contact with the uppermost content member, that is, the upper surface of the vegetable container 6. Any shape, such as an appropriate number of rods, may be used.

Then, the shoulder ring 9 and the shoulder member 8 are connected by the procedure described in the first embodiment, the soup 4, the rice cooker 5, and the vegetable holder 6 are put in the container body 2, and the lid 3 is attached. I will cover it. The cover member 3 is formed by screwing a cover screw 3a formed on the inner surface of the cover member 3 into the shoulder member outer screw 8c.
In this embodiment, the rib 3b contacts the upper surface of the vegetable case 6 before the lower end surface of the lid member 3 contacts the upper surface of the flange portion 8f of the shoulder member 8. Will be in contact. Therefore, the lid member 3 cannot be screwed any more, and a gap 3c is formed between the lower end surface of the lid member 3 and the upper surface of the flange 8f of the shoulder member 8. The formation of the gap 3c means that the lower end surface of the lid member 3 does not come into contact with the upper surface of the flange 8f of the shoulder member 8, so that the rotation of the lid member 3 causes the shoulder member 8 to co-rotate. Then, the adverse effect of loosening is prevented. (Fourth Embodiment) FIG. 4 shows the lower end surface of the lid member 3 which can be brought into contact with the upper surface of the flange 8f of the shoulder member 8 when the lid member is closed, or the upper surface of the flange 8f of the shoulder member 8. A plurality of ribs are provided as detent means, and these ribs are brought into contact with the upper surface of the flange 8f of the shoulder member 8,
An example in which co-rotation of the shoulder member is prevented by reducing the contact area between the upper surface of the flange portion 8f and the lower end surface of the lid member is shown, and FIG. 5 is an enlarged sectional view thereof. Note that this embodiment is also the same as the first embodiment except that a rib is provided on the lower end surface of the lid member, and therefore, see those of the first embodiment. Therefore, the description is omitted, and only the relevant portions are described.

That is, a cover screw 3a that can be screwed to the shoulder member outer screw 8c is formed on the inner peripheral surface near the opening of the cover member 3, and can contact the upper surface of the flange 8f of the shoulder member 8. A plurality of ribs 3b are suspended from the lower end surface of the cover member 3 at equal intervals. The rib 3b comes into contact with the upper surface of the flange 8f of the shoulder member 8 when the lid member 3 is closed. In particular, the rib 3b may have any shape, but the contact area is preferably as small as possible. Although the rib 3b is described as being provided on the lower end surface of the lid member, it may be provided on the upper surface of the flange 8f of the shoulder member 8.

Then, the shoulder member 8 is firmly attached to the container main body 2 by the shoulder ring 9, and the juice container 4, the rice cooker 5 and the vegetable container 6 are put in the container main body 2, and formed on the inner surface of the lid member 3. By screwing the cover screw 3a into the shoulder member outer screw 8c, the cover is closed, but the lower end surface of the cover member 3 which can be brought into contact with the upper surface of the flange 8f of the shoulder member 8 has a plurality of pieces as described above. The rib 3b is hung, and when the lid member 3 is screwed in, the tip of the rib 3b comes into contact with the upper surface of the flange 8f of the shoulder member 8. The contact area between the rib 3b and the upper surface of the flange 8f of the shoulder member 8 can be made smaller than that of the conventional one, and the contact friction between the two is reduced accordingly. The adverse effect that the shoulder members 8 rotate together with the shoulder members 8 is reduced. As another embodiment, the rotation can be stopped also by reversing the screw direction between the shoulder member 8 and the shoulder ring 9 and the screw direction between the lid member 3 and the shoulder member 8. it can.

The present invention is not limited to the configuration of each of the above embodiments, and it is needless to say that the design can be changed as appropriate without departing from the gist of the invention.

[0053]

According to the first and second aspects of the present invention, a step is provided on the outer surface of the outer cylinder of the container body, a shoulder member is attached from below, and a shoulder ring is attached from above, and the step is placed below the step. The shoulder member can be easily attached and detached by hooking the lower end of the shoulder member to the step portion and attaching the shoulder member. Even if the screw fitting is disengaged, the container body does not fall below the shoulder member, so that safety can be improved. Also, since there is no need to provide a screw on the container body, the shape of the press mold for molding the container body can be simplified,
The cost can be reduced accordingly, and the gap between the shoulder member and the lid member can be eliminated after fitting, so that the appearance can be made beautiful.
Furthermore, in the painting of the part except the step part of the container body,
Since the masking can be performed using the step portion, the painting operation can be simplified.

According to the third aspect of the present invention, the shoulder member and the shoulder ring are arranged such that the shoulder member is disposed outward and the shoulder ring is disposed inward, and a contact portion between the two is screw-fitted. In addition to the effects of the inventions according to Items 1 and 2, the shoulder member and the shoulder ring can be simultaneously and integrally connected, and both can be firmly connected to the container body.

In the invention according to claims 4 to 6, in addition to the effect of the invention according to claims 1 to 3, by providing a rotation preventing means between the container body and the shoulder member and / or the shoulder ring, When the shoulder ring is screwed onto the shoulder member, co-rotation of the shoulder member can be prevented, and loosening due to vibration or the like after the coupling of the two can be prevented.

According to the seventh aspect of the present invention, the upper end of the shoulder ring is located above the upper end of the container main body, and a rib is provided at a portion facing the content member, thereby achieving the effects of the first to fourth aspects of the present invention. In addition, for example, in the case of a lunch jar, the container is arranged near the shoulder ring, so that the contents such as the container can be prevented from rattling inside when being carried after the lid is closed. .

According to the eighth aspect of the invention, by providing a gap between the lid member and the shoulder member, in addition to the effects of the first to fifth aspects, when the lid member is closed, the lid member is closed. Can be reliably prevented from coming into contact with the shoulder member and loosening the screwing between the shoulder member and the shoulder ring due to the co-rotation of the shoulder member.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a portable heat insulating container of the present invention.

FIG. 2 is a cross-sectional view showing a second embodiment of the portable heat insulating container of the present invention.

FIG. 3 is a sectional view showing a third embodiment of the portable heat insulating container of the present invention.

FIG. 4 is a cross-sectional view illustrating a portable heat insulating container according to a fourth embodiment of the present invention.

FIG. 5 is an enlarged sectional view of a main part of FIG. 4;

FIG. 6 is a sectional view of a conventional portable heat insulating bottle.

[Description of Signs] 1 ... Lunch jar 2 ... Container main body 3 ... Lid member 4 ... Juice 5 ... Rice 8 ... Shoulder member 20 ... Inner cylindrical body 21 ... Outer cylindrical body 22 ... Inner space 2a ... Top wall 2b ... trunk 2c ... bottom wall 2d ... step 2e ... projection 3b ... rib 3c ... gap 8a ... throttle 8c ... shoulder member outer screw 8d ... concave fitting part 9 ... shoulder ring 9a ... shoulder ring screw 9b ... flange 9c ... groove 9d ... rib 10 ... packing 40 ... juice body 44 ... rubber valve 50 ... rice cooker body 52 ... middle lid body 53 ... upper plate 54 ... engagement groove 55 ... flange 58 ... heat insulating material 62 ... bulging part 63 ... groove

Claims (8)

[Claims] 1. A container body having a heat insulating structure, a shoulder member detachable from the container body, a shoulder ring connecting the container body and the shoulder member, and a lid member for opening and closing an opening of the container body. A step portion is provided on the outer surface of the outer cylinder of the container body, the shoulder member is attached from below, and the shoulder ring is attached from above. 2. The heat insulating container according to claim 1, wherein the step portion is formed to have a larger diameter than a lower portion thereof, and a lower end of the shoulder member is hooked on the step portion to be attached. 3. The shoulder member and the shoulder ring, wherein the shoulder member is disposed outward and the shoulder ring is disposed inward, and a contact portion between the two is screw-fitted. 2. The insulated container according to 2. 4. The heat insulating container according to claim 1, further comprising a detent means provided between said container body and said shoulder member and / or said shoulder ring. 5. The detent means provided between the container body and the shoulder member is a packing provided between a step portion of the container body and a lower end of the shoulder member which is hooked and attached to the step portion. The heat insulating container according to claim 4, wherein: 6. The rotation preventing means provided between the container body and the shoulder member is provided at any one of a position between a step of the container body and a lower end of the shoulder member which is hooked and attached to the step. The insulated container according to claim 4, wherein the container is an object. 7. The heat insulating container according to claim 1, wherein an upper end of the shoulder ring is located above an upper end of the container main body, and a rib is provided at a portion facing the content member. 8. The heat insulating container according to claim 1, wherein a gap is provided between the lid member and the shoulder member.